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Dec 10, 2023

OpenChat framework aims to optimize open-source language models

Posted by in category: robotics/AI

Researchers from Tsinghua University, Shanghai Artificial Intelligence Laboratory, and 01.AI have developed a new framework called OpenChat to improve open-source language models with mixed data quality.

Open-source language models such as LLaMA and LLaMA2, which allow anyone to inspect and understand the program code, are often refined and optimized using special techniques such as supervised fine-tuning (SFT) and reinforcement learning fine-tuning (RLFT).

However, these techniques assume that all data used is of the same quality. In practice, however, a data set typically consists of a mixture of optimal and relatively poor data. This can hurt the performance of language models.

Dec 10, 2023

Using hierarchical generative models to enhance the motor control of autonomous robots

Posted by in category: robotics/AI

To best move in their surrounding environment and tackle everyday tasks, robots should be able to perform complex motions, effectively coordinating the movement of individual limbs. Roboticists and computer scientists have thus been trying to develop computational techniques that can artificially replicate the process through which humans plan, execute, and coordinate the movements of different body parts.

A research group based at Intel Labs (Germany), University College London (UCL, UK), and VERSES Research Lab (US) recently set out to explore the motor control of using hierarchical generative models, computational techniques that organize variables in data into different levels or hierarchies, to then mimic specific processes.

Their paper, published in Nature Machine Intelligence, demonstrates the effectiveness of these models for enabling human-inspired motor control in autonomous robots.

Dec 10, 2023

These robots know when to ask for help

Posted by in category: robotics/AI

Large language models combined with confidence scores help them recognize uncertainty. That could be key to making robots safe and trustworthy.

Dec 10, 2023

Enhanced AI Can Follow Neurons Inside Moving Animals

Posted by in category: robotics/AI

Recent advances allow imaging of neurons inside freely moving animals. However, to decode circuit activity, these imaged neurons must be computationally identified and tracked. This becomes particularly challenging when the brain itself moves and deforms inside an organism’s flexible body, e.g. in a worm. Until now, the scientific community has lacked the tools to address the problem.

Now, a team of scientists from EPFL and Harvard have developed a pioneering AI method to track neurons inside moving and deforming animals. The study, now published in Nature Methods, was led by Sahand Jamal Rahi at EPFL’s School of Basic Sciences.

The new method is based on a convolutional neural network (CNN), which is a type of AI that has been trained to recognize and understand patterns in images. This involves a process called “convolution”, which looks at small parts of the picture – like edges, colors, or shapes – at a time and then combines all that information together to make sense of it and to identify objects or patterns.

Dec 10, 2023

This AI-powered ETF aims to remove investors’ emotional bias from the decision-making process

Posted by in category: robotics/AI

South Korean conglomerate LG’s AI research division launched an AI-run ETF with Qraft Technologies in November.

Dec 10, 2023

Absolutely astonishing deep sea giant just filmed by scientists

Posted by in category: futurism

An elusive creature of the deep sea.

Dec 10, 2023

Lost Brain Function Restored in Mice after Stroke

Posted by in categories: biotech/medical, neuroscience

Researchers have succeeded in restoring lost brain function in mouse models of stroke using small molecules that in the future could potentially be developed into a stroke recovery therapy. “Communication between nerve cells in large parts of the brain changes after a stroke and we show that it can be partially restored with the treatment,” says Tadeusz Wieloch, senior professor of neurobiology at Lund University in Sweden.

“Concomitantly, the rodents regain lost somatosensory functions, something that around 60 per cent of all stroke patients experience today. The most remarkable result is that the treatment began several days after a stroke,” Wieloch continues.

In an ischemic stroke, lack of blood flow to the brain causes damage, which rapidly leads to nerve cell loss that affects large parts of the vast network of nerve cells in the brain.

Dec 10, 2023

Composition of Asteroid Phaethon

Posted by in category: space

The asteroid that causes the Geminid shooting star swarm has also puzzled researchers with its comet-like tail. The infrared spectrum of rare meteorites helped to determine the composition of the asteroid.

Asteroid Phaethon, which is five kilometers in diameter, has been puzzling researchers for a long time. A comet-like tail is visible for a few days when the asteroid passes closest to the Sun during its orbit.

However, the tails of comets are usually formed by vaporizing ice and carbon dioxide, which cannot explain this tail. The tail should be visible already at Jupiter’s distance from the Sun.

Dec 10, 2023

When do we become Cyborgs? The AI Quantum Biological Monster

Posted by in categories: biological, cyborgs, quantum physics, robotics/AI

An exploration of the merging of biology, AI and quantum computing and the spooky implications of it. My Patreon Page:

Dec 10, 2023

The Strange Case of the Double Big Bang

Posted by in category: cosmology

An exploration of a recent paper that suggests that there may not have been a single big bang, but two at the beginning of the universe.

My Patreon Page:

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